diff --git a/core/modules/views/src/Tests/Plugin/DisplayExtenderTest.php b/core/modules/views/src/Tests/Plugin/DisplayExtenderTest.php
index 33c3713..c049749 100644
--- a/core/modules/views/src/Tests/Plugin/DisplayExtenderTest.php
+++ b/core/modules/views/src/Tests/Plugin/DisplayExtenderTest.php
@@ -38,6 +38,12 @@ public function testDisplayExtenders() {
 
     $this->assertEqual(count($view->display_handler->getExtenders()), 1, 'Make sure that only one extender is initialized.');
 
+    $display_extender = $view->display_handler->getExtender('display_extender_test');
+    $this->assertEqual($display_extender, NULL, 'Make sure NULL is returned if requested class is not initialized.');
+
+	 $display_extender = $view->display_handler->getExtender('display_extender_test_not_initialized');
+    $this->assertTrue($display_extender instanceof DisplayExtenderTestData, 'Make sure the requested class got initialized.');
+
     $display_extender = $view->display_handler->getExtenders()['display_extender_test'];
     $this->assertTrue($display_extender instanceof DisplayExtenderTestData, 'Make sure the right class got initialized.');